261550188

素因数分解:

$2^2\times 3^3\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{61}}^1$

素因数の和:177

約数の個数: 144

約数和(自身を含む): 732765600

約数和(自身を除く): 471215412

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 29, 36, 37, 54, 58, 61, 74, 87, 108, 111, 116, 122, 148, 174, 183, 222, 244, 261, 333, 348, 366, 444, 522, 549, 666, 732, 783, 999, 1044, 1073, 1098, 1332, 1369, 1566, 1647, 1769, 1998, 2146, 2196, 2257, 2738, 3132, 3219, 3294, 3538, 3996, 4107, 4292, 4514, 5307, 5476, 6438, 6588, 6771, 7076, 8214, 9028, 9657, 10614, 12321, 12876, 13542, 15921, 16428, 19314, 20313, 21228, 24642, 27084, 28971, 31842, 36963, 38628, 39701, 40626, 47763, 49284, 57942, 60939, 63684, 65453, 73926, 79402, 81252, 83509, 95526, 115884, 119103, 121878, 130906, 147852, 158804, 167018, 191052, 196359, 238206, 243756, 250527, 261812, 334036, 357309, 392718, 476412, 501054, 589077, 714618, 751581, 785436, 1002108, 1071927, 1178154, 1429236, 1503162, 1767231, 2143854, 2254743, 2356308, 2421761, 3006324, 3534462, 4287708, 4509486, 4843522, 7068924, 7265283, 9018972, 9687044, 14530566, 21795849, 29061132, 43591698, 65387547, 87183396, 130775094, 261550188]

約数ペア:

[(1, 261550188), (2, 130775094), (3, 87183396), (4, 65387547), (6, 43591698), (9, 29061132), (12, 21795849), (18, 14530566), (27, 9687044), (29, 9018972), (36, 7265283), (37, 7068924), (54, 4843522), (58, 4509486), (61, 4287708), (74, 3534462), (87, 3006324), (108, 2421761), (111, 2356308), (116, 2254743), (122, 2143854), (148, 1767231), (174, 1503162), (183, 1429236), (222, 1178154), (244, 1071927), (261, 1002108), (333, 785436), (348, 751581), (366, 714618), (444, 589077), (522, 501054), (549, 476412), (666, 392718), (732, 357309), (783, 334036), (999, 261812), (1044, 250527), (1073, 243756), (1098, 238206), (1332, 196359), (1369, 191052), (1566, 167018), (1647, 158804), (1769, 147852), (1998, 130906), (2146, 121878), (2196, 119103), (2257, 115884), (2738, 95526), (3132, 83509), (3219, 81252), (3294, 79402), (3538, 73926), (3996, 65453), (4107, 63684), (4292, 60939), (4514, 57942), (5307, 49284), (5476, 47763), (6438, 40626), (6588, 39701), (6771, 38628), (7076, 36963), (8214, 31842), (9028, 28971), (9657, 27084), (10614, 24642), (12321, 21228), (12876, 20313), (13542, 19314), (15921, 16428)]